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//
//   http://www.apache.org/licenses/LICENSE-2.0
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package org.apache.doris.nereids.trees.plans.commands.alter;

import org.apache.doris.alter.QuotaType;
import org.apache.doris.catalog.Env;
import org.apache.doris.common.ErrorCode;
import org.apache.doris.common.ErrorReport;
import org.apache.doris.common.util.InternalDatabaseUtil;
import org.apache.doris.common.util.ParseUtil;
import org.apache.doris.mysql.privilege.PrivPredicate;
import org.apache.doris.nereids.trees.plans.PlanType;
import org.apache.doris.nereids.trees.plans.commands.AlterCommand;
import org.apache.doris.nereids.trees.plans.visitor.PlanVisitor;
import org.apache.doris.qe.ConnectContext;
import org.apache.doris.qe.StmtExecutor;

import com.google.common.base.Strings;
import com.google.gson.annotations.SerializedName;

/**
 *  Represents the command for ALTER DATABASE db_name SET (DATA |REPLICA | TRANSACTION) QUOTA quota_value.
 */
public class AlterDatabaseSetQuotaCommand extends AlterCommand {

    @SerializedName("db")
    private String dbName;

    @SerializedName("qt")
    private QuotaType quotaType;

    @SerializedName("qv")
    private String quotaValue;

    @SerializedName("q")
    private long quota;

    public AlterDatabaseSetQuotaCommand(String dbName, QuotaType quotaType, String quotaValue) {
        super(PlanType.ALTER_DATABASE_SET_DATA_QUOTA_COMMAND);
        this.dbName = dbName;
        this.quotaType = quotaType;
        this.quotaValue = quotaValue;
    }

    @Override
    public void doRun(ConnectContext ctx, StmtExecutor executor) throws Exception {
        InternalDatabaseUtil.checkDatabase(dbName, ConnectContext.get());
        if (!Env.getCurrentEnv().getAccessManager().checkGlobalPriv(ConnectContext.get(), PrivPredicate.ADMIN)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_DBACCESS_DENIED_ERROR,
                    ctx.getQualifiedUser(), dbName);
        }

        if (Strings.isNullOrEmpty(dbName)) {
            ErrorReport.reportAnalysisException(ErrorCode.ERR_NO_DB_ERROR);
        }
        if (quotaType == QuotaType.DATA) {
            quota = ParseUtil.analyzeDataVolume(quotaValue);
        } else if (quotaType == QuotaType.REPLICA) {
            quota = ParseUtil.analyzeReplicaNumber(quotaValue);
        } else if (quotaType == QuotaType.TRANSACTION) {
            quota = ParseUtil.analyzeTransactionNumber(quotaValue);
        }
        Env.getCurrentInternalCatalog().alterDatabaseQuota(dbName, quotaType, quota);
    }

    @Override
    public <R, C> R accept(PlanVisitor<R, C> visitor, C context) {
        return visitor.visitAlterDatabaseSetQuotaCommand(this, context);
    }

    public String toSql() {
        return "ALTER DATABASE " + dbName + " SET "
                + quotaType.name()
                + " QUOTA " + quotaValue;
    }
}
